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. 2009 Jul 1;106(29):11851–11856. doi: 10.1073/pnas.0901407106

Fig. 1.

Fig. 1.

Proposed role for GlfT2 in mycobacterial galactan biosynthesis. GlfT2 is hypothesized to mediate synthesis of the galactan polymer, which contains between 20 and 40 Galf residues (m = 10–20) connected by alternating β-Galf-(1→5)-Galf and β-Galf-(1→6)-Galf linkages. Elongation occurs by addition of Galf residues from UDP-Galf to the nonreducing end of a lipid-linked acceptor (compound 1). Synthetic acceptors 2-6 share features with the natural acceptor (compound 1). Rha, rhamnose.